2014-06-18 12:06, Hiroshi Shimamoto: > 2014-06-18 13:49, Thomas Monjalon: > > 2014-06-18 11:42, Hiroshi Shimamoto: > > > 2014-06-18 19:26, GongJinrong: > > > > Do you have any idea that how to write a host application > > > > to put the data to guest memnic PMD? > > > > > > Yes, basically I made the MEMNIC interface work with DPDK vSwitch. > > > > > > By the way, you can mmap() the shm which specified as the ivshmem and > > > put > > > the proper data to send a packet to guest PMD. > > > I don't have time to make proper code, but can advise you; > > > please see common/memnic.h and the memory layout. > > > 1) Set magic and version in header on host. > > > 2) Initialize PMD on guest. > > > 3) Check the reset is 1 and set valid to 1, reset to 0 on host. > > > 4) Use uplink area the default block size 4K. > > > > > > Set len and fill ether frame data, then set the status to 2 on host. > > > Guest PMD may receive the packet. > > > Proceed to the next packet block. > > > > Such application should be integrated in memnic repository. > > I know Olivier wrote one which could be sent on next week. > > yeah, I just begin to feel to need such a software in the repository.
I've pushed the test application (host-sim) that Olivier wrote. Feel free to improve it. I think that we could also use the PMD driver in host side with some modifications. -- Thomas